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just some more comments for SI :)

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@2515 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
Shawn Hoffman 2009-03-02 05:55:39 +00:00
parent 5586c964bb
commit 2726a2acb9
4 changed files with 33 additions and 24 deletions
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24
Source/Core/Core/Src/HW/SI.cpp
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@ -123,16 +123,16 @@ union USIPoll
u32 Hex;
struct
{
unsigned VBCPY3 : 1;
unsigned VBCPY3 : 1; // 1: write to output buffer only on vblank
unsigned VBCPY2 : 1;
unsigned VBCPY1 : 1;
unsigned VBCPY0 : 1;
unsigned EN3 : 1;
unsigned EN2 : 1;
unsigned EN3 : 1; // Enable polling of channel
unsigned EN2 : 1; // does not affect communication RAM transfers
unsigned EN1 : 1;
unsigned EN0 : 1;
unsigned Y : 10;
unsigned X : 10;
unsigned Y : 10; // Polls per frame
unsigned X : 10; // Polls per X lines. begins at vsync, min 7, max depends on video mode
unsigned : 6;
};
};
@ -143,13 +143,17 @@ union USIComCSR
u32 Hex;
struct
{
unsigned TSTART : 1;
unsigned CHANNEL : 2; // determines which SI channel will be used the communication interface.
unsigned : 5;
unsigned TSTART : 1; // write: start transfer read: transfer status
unsigned CHANNEL : 2; // determines which SI channel will be used on the communication interface.
unsigned : 3;
unsigned CALLBEN : 1; // Callback enable
unsigned CMDEN : 1; // Command enable?
unsigned INLNGTH : 7;
unsigned : 1;
unsigned OUTLNGTH : 7; // Communication Channel Output Length in bytes
unsigned : 4;
unsigned : 1;
unsigned CHANEN : 1; // Channel enable?
unsigned CHANNUM : 2; // Channel number?
unsigned RDSTINTMSK : 1; // Read Status Interrupt Status Mask
unsigned RDSTINT : 1; // Read Status Interrupt Status
unsigned COMERR : 1; // Communication Error (set 0)
@ -206,7 +210,7 @@ union USIEXIClockCount
u32 Hex;
struct
{
unsigned LOCK : 1;
unsigned LOCK : 1; // 1: prevents CPU from setting EXI clock to 32MHz
unsigned : 30;
};
};

1
Source/Core/Core/Src/HW/SI_Device.cpp
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@ -52,6 +52,7 @@ int ISIDevice::RunBuffer(u8* _pBuffer, int _iLength)
//////////////////////////////////////////////////////////////////////////
// Just a dummy that logs reads and writes
// to be used for SI devices we haven't emulated
// and hopefully as an "emtpy" device
class CSIDevice_Dummy : public ISIDevice
{
public:

14
Source/Core/Core/Src/HW/SI_DeviceGCController.cpp
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@ -34,12 +34,16 @@ CSIDevice_GCController::CSIDevice_GCController(int _iDeviceNumber) :
{
memset(&m_origin, 0, sizeof(SOrigin));
m_origin.uCommand = 0x41;
m_origin.uOriginStickX = 0x80;
// Resetting to origin is a function of the controller itself
// press X+Y+Start for three seconds to trigger a reset
// probably this is meant to read current pad status and use it as
// the origin, but we just use these:
m_origin.uCommand = CMD_ORIGIN;
m_origin.uOriginStickX = 0x80; // center
m_origin.uOriginStickY = 0x80;
m_origin.uSubStickStickX = 0x80;
m_origin.uSubStickStickY = 0x80;
m_origin.uTrigger_L = 0x1F;
m_origin.uTrigger_L = 0x1F; // 0-30 is the lower deadzone
m_origin.uTrigger_R = 0x1F;
}
@ -60,7 +64,7 @@ int CSIDevice_GCController::RunBuffer(u8* _pBuffer, int _iLength)
{
case CMD_RESET:
{
*(u32*)&_pBuffer[0] = SI_GC_CONTROLLER; // | SI_GC_NOMOTOR;
*(u32*)&_pBuffer[0] = SI_GC_CONTROLLER;
iPosition = _iLength; // Break the while loop
}
break;
@ -126,7 +130,7 @@ CSIDevice_GCController::GetData(u32& _Hi, u32& _Low)
_Hi = (u32)((u8)PadStatus.stickY);
_Hi |= (u32)((u8)PadStatus.stickX << 8);
_Hi |= (u32)((u16)PadStatus.button << 16); // Dunno were/if we should set any of the top 3bits...
_Hi |= (u32)((u16)PadStatus.button << 16);
_Hi |= 0x00800000; // F|RES: means that the pad must be "combined" with the origin to math the "final" OSPad-Struct
//_Hi |= 0x20000000; // ?

12
Source/Core/Core/Src/HW/SI_DeviceGCController.h
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@ -37,14 +37,14 @@ private:
struct SOrigin
{
u8 uCommand;
u8 unk_1;
u8 uCommand;// Maybe should be button bits?
u8 unk_1; // ..and this would be the other half
u8 uOriginStickX;
u8 uOriginStickY;
u8 uSubStickStickX; // ???
u8 uSubStickStickY; // ???
u8 uTrigger_L; // ???
u8 uTrigger_R; // ???
u8 uSubStickStickX;
u8 uSubStickStickY;
u8 uTrigger_L;
u8 uTrigger_R;
u8 unk_4;
u8 unk_5;
u8 unk_6;